Daytime sleepiness, circadian preference, caffeine consumption and use of other stimulants among Thai college students
Open accessAbstract
We conducted this study to evaluate the prevalence of daytime sleepiness and evening chronotype, and to assess the extent to which both are associated with the use of caffeinated stimulants among 3,000 Thai college students. Demographic and behavioral characteristics were collected using a self-administered questionnaire. The Epworth Sleepiness Scale and the Horne and Ostberg Morningness-Eveningness Questionnaire were used to evaluate prevalence of daytime sleepiness and circadian preference. Multivariable logistic regression models were used to evaluate the association between sleep disorders and consumption of caffeinated beverages. Overall, the prevalence of daytime sleepiness was 27.9 % (95% CI: 26.2-29.5%) while the prevalence of evening chronotype was 13% (95% CI: 11.8-14.2%). Students who use energy drinks were more likely to be evening types. For instance, the use of M100/M150 energy drinks was associated with a more than 3-fold increased odds of evening chronotype (OR 3.50; 95% CI 1.90-6.44), while Red Bull users were more than twice as likely to have evening chronotype (OR 2.39; 95% CI 1.02-5.58). Additionally, those who consumed any energy drinks were more likely to be daytime sleepers. For example, Red Bull (OR 1.72; 95% CI 1.08-2.75) or M100/M150 (OR 1.52; 95% CI 1.10-2.11) consumption was associated with increased odds of daytime sleepiness. Our findings emphasize the importance of implementing educational and prevention programs targeted toward improving sleep hygiene and reducing the consumption of energy drinks among young adults.
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Evening chronotype is cross-sectionally associated with higher consumption of stimulants such as caffeine, energy drinks, sugar-sweetened beverages, and alcohol in adolescents and in college or university students.
“Several other studies have reported cross-sectional associations between an evening chronotype and higher consumption of stimulants such as caffeine, energy drinks, sugar-sweetened beverages, and alcohol in adolescents (24) and in college or university students (49, 78, 79, 84).”
From Chronotype: Implications for Epidemiologic Studies on Chrono-Nutrition and Cardiometabolic Health (2019) · cites this paper as [78]
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- Authors
- Jason, T., Somrat, L., Vitool, L., Wipawan, C. P., Thanapoom, R., Mahlet, G. T., Bizu, G., & Michelle, A. W.
- Affiliations
- Harvard University (US)
- Walailak University (TH)
- Venue
- Journal of Public Health and Epidemiology
- Publisher
- Academic Journals
- Published
- 2014-06-30
- Volume
- 8
- Issue
- 6
- Pages
- 202-210
- ISSN
- 2141-2316 (ISSN-L)
- PMC
- PMC4209847
- OpenAlex
- W2131797688
- Cited by
- 33
- References
- 51
- Citations by year
- 2026: 1 · 2025: 1 · 2023: 1 · 2021: 4 · 2020: 1 · 2019: 6 · 2018: 2 · 2017: 5 · 2016: 6 · 2015: 5 · 2014: 1
- FWCI
- 7.86
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by
- Locations
- Journal of Public Health and Epidemiology (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Greater South Information System
- Funders
- National Institute on Minority Health and Health Disparities (T37MD001449, T37-MD000149)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Health Sciences › Medicine › Pharmacology › Coffee research and impacts
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Keywords
- daytime sleepiness, circadian preference, chronotype, caffeine consumption, energy drinks, university students, young adults, sleep hygiene, Red Bull, Thai students
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